feat: limit concurrent image distribution jobs and add validation for… #8436

Job	Run time
compatibility_e2e_tests (scheduler)	42m 14s
compatibility_e2e_tests (manager)	42m 20s
compatibility_e2e_tests (seed-client)	43m 12s
compatibility_e2e_tests (client)	42m 14s
	2h 50m 0s

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